@import url('https://fonts.googleapis.com/css2?family=Outfit:wght@300;400;500;600;700&display=swap');

:root {
    --bg: #030712;
    --panel: #111827;
    --card: rgba(31, 41, 55, 0.5);
    --elev: rgba(17, 24, 39, 0.95);
    --border: rgba(255, 255, 255, 0.1);
    --text: #f9fafb;
    --muted: #9ca3af;
    --accent: #3b82f6;
    --accent-glow: rgba(59, 130, 246, 0.5);
    --accent-gradient: linear-gradient(135deg, #3b82f6 0%, #2563eb 100%);
    --success: #10b981;
    --error: #ef4444;
    --warning: #f59e0b;
    --glass: rgba(255, 255, 255, 0.03);
    --glass-hover: rgba(255, 255, 255, 0.06);
}

* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html, body {
    height: 100%;
    font-family: 'Outfit', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background: var(--bg);
    background-image: 
        radial-gradient(circle at 0% 0%, rgba(59, 130, 246, 0.15) 0%, transparent 50%),
        radial-gradient(circle at 100% 100%, rgba(37, 99, 235, 0.1) 0%, transparent 50%);
    color: var(--text);
    line-height: 1.6;
    overflow-x: hidden;
}

body {
    padding-top: 80px;
}

/* --- Scrollbar --- */
::-webkit-scrollbar {
    width: 8px;
}
::-webkit-scrollbar-track {
    background: var(--bg);
}
::-webkit-scrollbar-thumb {
    background: var(--border);
    border-radius: 4px;
}
::-webkit-scrollbar-thumb:hover {
    background: var(--muted);
}

/* --- Layout --- */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

.site-header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 100;
    background: rgba(3, 7, 18, 0.7);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border);
    height: 80px;
    display: flex;
    align-items: center;
}

.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    width: 100%;
}

.brand {
    font-size: 1.5rem;
    font-weight: 700;
    display: flex;
    align-items: center;
    gap: 12px;
    letter-spacing: -0.02em;
    background: linear-gradient(to right, #fff, #9ca3af);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

.login-card {
    max-width: 440px;
    margin: 60px auto;
    text-align: center;
}

.search-container {
    width: 300px;
}

.mini-btn {
    float: right;
    padding: 8px !important;
}

.auth-icon {
    font-size: 3.5rem;
    color: var(--accent);
    margin-bottom: 20px;
    display: block;
    filter: drop-shadow(0 0 10px var(--accent-glow));
}

.login-card button {
    width: 100%;
}

.brand i {
    color: var(--accent);
    -webkit-text-fill-color: initial;
    filter: drop-shadow(0 0 8px var(--accent-glow));
}

.brand-sub {
    font-size: 0.9rem;
    font-weight: 400;
    margin-left: 12px;
    padding-left: 12px;
    border-left: 1px solid var(--border);
    color: var(--muted);
    -webkit-text-fill-color: initial;
}

.nav {
    display: flex;
    align-items: center;
    gap: 16px;
}

/* --- Cards & Elements --- */
.card {
    background: var(--card);
    backdrop-filter: blur(10px);
    border: 1px solid var(--border);
    border-radius: 20px;
    padding: 32px;
    box-shadow: 0 20px 50px rgba(0, 0, 0, 0.3);
}

.input-with-icon {
    position: relative;
    display: flex;
    align-items: center;
    width: 100%;
}

.input-with-icon i {
    position: absolute;
    left: 16px;
    color: var(--muted);
    font-size: 1rem;
    transition: color 0.3s;
}

.input-with-icon input:focus + i,
.input-with-icon i.active {
    color: var(--accent);
}

input, select {
    width: 100%;
    padding: 14px 16px 14px 48px;
    background: rgba(0, 0, 0, 0.2);
    border: 1px solid var(--border);
    border-radius: 12px;
    color: var(--text);
    font-family: inherit;
    font-size: 1rem;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

input:focus, select:focus {
    outline: none;
    border-color: var(--accent);
    background: rgba(0, 0, 0, 0.4);
    box-shadow: 0 0 0 4px rgba(59, 130, 246, 0.1);
}

button {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    padding: 14px 28px;
    border-radius: 12px;
    font-size: 1rem;
    font-weight: 600;
    font-family: inherit;
    cursor: pointer;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    border: none;
    background: var(--accent-gradient);
    color: white;
    box-shadow: 0 4px 15px rgba(37, 99, 235, 0.3);
}

button:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(37, 99, 235, 0.4);
}

button:active {
    transform: translateY(0);
}

button.secondary {
    background: var(--glass);
    border: 1px solid var(--border);
    color: var(--text);
    box-shadow: none;
}

button.secondary:hover {
    background: var(--glass-hover);
    border-color: var(--muted);
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
}

/* --- Storage Specific --- */
.upload-area {
    border: 2px dashed var(--border);
    border-radius: 20px;
    padding: 60px 40px;
    text-align: center;
    transition: all 0.3s ease;
    cursor: pointer;
    background: rgba(59, 130, 246, 0.02);
}

.upload-area:hover, .upload-area.drag-over {
    border-color: var(--accent);
    background: rgba(59, 130, 246, 0.05);
    transform: scale(1.01);
}

.upload-area i {
    filter: drop-shadow(0 0 15px var(--accent-glow));
    margin-bottom: 24px;
}

.files-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 20px;
    margin-top: 32px;
}

.file-card {
    background: var(--glass);
    border: 1px solid var(--border);
    border-radius: 16px;
    padding: 20px;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    display: flex;
    flex-direction: column;
}

.file-card:hover {
    background: var(--glass-hover);
    border-color: var(--accent);
    transform: translateY(-4px);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
}

.file-card button {
    padding: 8px;
    background: transparent;
    box-shadow: none;
}

.file-card button:hover {
    background: rgba(255, 255, 255, 0.1);
    transform: none;
}

/* --- Progress --- */
.progress-bar {
    width: 100%;
    height: 6px;
    background: rgba(0, 0, 0, 0.3);
    border-radius: 100px;
    overflow: hidden;
    margin: 12px 0;
}

.progress-fill {
    height: 100%;
    background: var(--accent-gradient);
    width: 0%;
    transition: width 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    box-shadow: 0 0 10px var(--accent-glow);
}

/* --- Modals --- */
.modal {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(3, 7, 18, 0.85);
    backdrop-filter: blur(10px);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
    opacity: 0;
    visibility: hidden;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.modal.active {
    opacity: 1;
    visibility: visible;
}

.modal-content {
    background: var(--panel);
    border: 1px solid var(--border);
    border-radius: 24px;
    width: 90%;
    max-width: 600px;
    overflow: hidden;
    transform: scale(0.9) translateY(20px);
    transition: all 0.4s cubic-bezier(0.34, 1.56, 0.64, 1);
}

.modal.active .modal-content {
    transform: scale(1) translateY(0);
}

/* --- Animations --- */
@keyframes fadeInUp {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
}

.reveal {
    animation: fadeInUp 0.6s cubic-bezier(0.4, 0, 0.2, 1) forwards;
}

/* --- Responsive --- */
@media (max-width: 768px) {
    .nav {
        display: none; /* In a real app we'd add a mobile menu */
    }
    
    .container {
        padding: 0 16px;
    }
    
    .card {
        padding: 24px;
    }
    
    .upload-area {
        padding: 40px 20px;
    }
}

/* --- Skeleton --- */
.skeleton {
    background: linear-gradient(90deg, var(--glass) 25%, var(--glass-hover) 50%, var(--glass) 75%);
    background-size: 200% 100%;
    animation: loading 1.5s infinite;
}

@keyframes loading {
    from { background-position: 200% 0; }
    to { background-position: -200% 0; }
}

/* --- Toast Notifications --- */
.toast-container {
    position: fixed;
    bottom: 32px;
    right: 32px;
    z-index: 9999;
    display: flex;
    flex-direction: column;
    gap: 12px;
    pointer-events: none;
}

.toast {
    background: var(--panel);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border: 1px solid var(--border);
    padding: 16px 24px;
    border-radius: 16px;
    color: var(--text);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
    display: flex;
    align-items: center;
    gap: 12px;
    min-width: 280px;
    max-width: 400px;
    animation: toastIn 0.4s cubic-bezier(0.34, 1.56, 0.64, 1);
    pointer-events: auto;
}

.toast i {
    font-size: 1.25rem;
}

.toast-error {
    border-left: 4px solid var(--error);
}

.toast-error i {
    color: var(--error);
}

.toast-success {
    border-left: 4px solid var(--success);
}

.toast-success i {
    color: var(--success);
}

@keyframes toastIn {
    from { transform: translateX(100%) scale(0.9); opacity: 0; }
    to { transform: translateX(0) scale(1); opacity: 1; }
}

@keyframes toastOut {
    to { transform: translateX(100%) scale(0.9); opacity: 0; }
}